Acetyl L-Carnitine: 3g per serving
The most serious side-effects, but which are rare, limit their use in persons having a history of pancreatis (inflammation of the pancreas) or thyroid cancer antecedents (due to the presence of GLP-1 receptors in the thyroid)
More severe but less frequent adverse events can include gallbladder issues and pancreatitis (Kommu S et al., 2025
GLP-2 analogs are already approved therapies for short bowel syndrome and are effective at reducing the need for parenteral nutrition in ~65% of individuals 16
But when you look at a thousand studies, and then you try it out, and then you understand some metabolic pathways, and you hypothesize, and then you test, and you look at the results, the name for that is science